Listen to Don't Know Why (Bossa Version) online. Don't Know Why (Bossa Version) is an English language song and is sung by Liz Menezes. Don't Know Why (Bossa Version), from the album Cafe Bossa Brazil, Vol. 7 (Bossa Nova Lounge Compilation), was released in the year 2014. The duration of the song is 2:51. Download English songs online from JioSaavn.